diff --git a/.circleci/config.yml b/.circleci/config.yml
index 547cd4b..ba583e6 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -15,6 +15,10 @@ jobs:
       - run:
           name: npm install
           command: npm install
+  test:
+    macos:
+      xcode: "10.2.1"
+    steps:
       - run:
           name: iOS unit tests
           command: 'npm run test-unit-ios'